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<div dir="auto"><span style="font-family:Arial;font-size: medium">OK, he says he was doing that because he was trying to get around the three connection limit. In his defence, he’s said that the last three letters of Italian callsigns are unique and are never reused with different prefix numbers so he’s never been using someone else’s callsign.</span><span style="font-size: medium"><br /></span><span style="font-size: medium"><br /></span><span style="font-family:Arial;font-size: medium">He’s been doing some tests to see how different clusters vary between them compared to the ones where spots are uploaded the most, to see how they handle traffic and if some spots don’t traverse the entire network.</span><span style="font-size: medium"><br /></span><span style="font-size: medium"><br /></span><span style="font-family:Arial;font-size: medium">He’s assured me that from now, he won’t make any more than three connections in at the same time and will only use IU4AZC..I think that’s fair.</span><span style="font-size: medium"><br /></span><span style="font-size: medium"><br /></span><span style="font-family:Arial;font-size: medium">73 Keith G6NHU </span></div>
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<div name="messageReplySection">On 3 Feb 2025 at 13:13 +0000, Keith, G6NHU via Dxspider-support <dxspider-support@tobit.co.uk>, wrote:<br />
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<div dir="auto"><span style="font-size: 16px">OK, I was checking files up to 031.dat and all I saw was IU4AZC, I see different callsigns after that. I will ask him.</span><span style="font-size: 16px"><br /></span><span style="font-size: 16px"><br /></span></div>
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<div name="messageReplySection">On 3 Feb 2025 at 12:27 +0000, Kin <ea3cv@cronux.net>, wrote:<br />
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<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>No, look <span class="SpellE">what</span> I <span class="SpellE">see</span> <span class="SpellE">when</span> I <span class="SpellE">select</span> <span class="SpellE">your</span> <span class="SpellE">node</span>. <span class="SpellE">This</span> <span class="SpellE">indicates</span> <span class="SpellE">all</span> <span class="SpellE">the</span> <span class="SpellE">callsigns</span> <span class="SpellE">you</span> <span class="SpellE">have</span> <span class="SpellE">reported</span> <span class="SpellE">that</span> <span class="SpellE">have</span> <span class="SpellE">connected</span> <span class="SpellE">to</span> <span class="SpellE">your</span> <span class="SpellE">node</span>:</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>grep "PC92\^G6NHU-2" 032.dat | grep -E "A\^\^1(IU[0-9]AZC)" | sed -E 's<span class="GramE">/.*</span>A\^\^1(IU[0-9]AZC).*/\1/' | <span class="SpellE">sort</span> | <span class="SpellE">uniq</span> -c</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span style='mso-spacerun:yes'> </span> 13 IU0AZC</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span style='mso-spacerun:yes'> </span> 14 IU3AZC</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span style='mso-spacerun:yes'> </span> 103 IU4AZC</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span style='mso-spacerun:yes'> </span> 30 IU5AZC</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span style='mso-spacerun:yes'> </span> 44 IU6AZC</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span style='mso-spacerun:yes'> </span> 13 IU7AZC</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'><span style='mso-spacerun:yes'> </span> 16 IU8AZC</span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'> </span></p>
<p class="MsoNormal"><span style='mso-bidi-font-size:11.0pt;font-family:"Calibri",sans-serif;mso-bidi-font-family:"Times New Roman";mso-fareast-language:EN-US'>Kin</span></p>
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<p class="MsoNormal"><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-font-family:"Times New Roman"'>De:</span></b> <span style='font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-font-family:"Times New Roman"'>Keith, G6NHU <g6nhu@me.com><br />
<b>Enviado el:</b> lunes, 3 de febrero de 2025 11:53<br />
<b>Para:</b> ea3cv@cronux.net<br />
<b>Asunto:</b> Re: [Dxspider-support] Bad IP</span></p>
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<p class="MsoNormal"><span style='mso-fareast-font-family:"Times New Roman"'>I’m only seeing connections here from IU4AZC (with different SSIDs) and I’m fine with that.<br />
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73 Keith G6NHU</span></p>
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<p class="MsoNormal"><span style='mso-fareast-font-family:"Times New Roman"'>On 3 Feb 2025 at 10:09 +0000, <a href="mailto:ea3cv@cronux.net">ea3cv@cronux.net</a>, wrote:<br style='mso-special-character:line-break' /></span></p>
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<p class="MsoNormal"><span style='mso-fareast-font-family:"Times New Roman"'>Hi,</span></p>
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<p class="MsoNormal"><span style='mso-fareast-font-family:"Times New Roman"'>I think it must still be blocked because it is identifying itself with several different callsigns.</span></p>
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<p class="MsoNormal"><span style='mso-fareast-font-family:"Times New Roman"'>Just do:</span></p>
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<p class="MsoNormal"><span style='mso-fareast-font-family:"Times New Roman"'>grep -E "(IU\dAZC)" spider/local_data/debug/2025/033.dat</span></p>
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<p class="MsoNormal"><span style='mso-fareast-font-family:"Times New Roman"'>Kin EA3CV</span></p>
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<p class="MsoNormal"><span style='mso-fareast-font-family:"Times New Roman"'>Enviado desde <a href="https://aka.ms/AAb9ysg">Outlook para Android</a></span></p>
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<p class="MsoNormal" style='mso-outline-level:1'><strong><span style='font-size:11.0pt;font-family:"Aptos",sans-serif;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:Aptos'>De:</span></strong> <span style='font-size:11.0pt;mso-fareast-font-family:"Times New Roman"'>Dxspider-support <<a href="mailto:dxspider-support-bounces@tobit.co.uk">dxspider-support-bounces@tobit.co.uk</a>> en nombre de Keith, G6NHU via Dxspider-support <<a href="mailto:dxspider-support@tobit.co.uk">dxspider-support@tobit.co.uk</a>><br />
<strong><span style='font-family:"Aptos",sans-serif;mso-bidi-font-family:Aptos'>Enviado:</span></strong> lunes, febrero 3, 2025 10:38:45 a. m.<br />
<strong><span style='font-family:"Aptos",sans-serif;mso-bidi-font-family:Aptos'>Para:</span></strong> The DXSpider Support list <<a href="mailto:dxspider-support@tobit.co.uk">dxspider-support@tobit.co.uk</a>><br />
<strong><span style='font-family:"Aptos",sans-serif;mso-bidi-font-family:Aptos'>CC:</span></strong> Keith, G6NHU <<a href="mailto:g6nhu@me.com">g6nhu@me.com</a>><br />
<strong><span style='font-family:"Aptos",sans-serif;mso-bidi-font-family:Aptos'>Asunto:</span></strong> Re: [Dxspider-support] Bad IP</span></p>
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<p class="MsoNormal"><span style='mso-fareast-font-family:"Times New Roman"'>I did this yesterday and have just received an email.<br />
<br /></span> <span style='font-size:13.5pt;mso-fareast-font-family:"Times New Roman"'>I’ve removed his IP from my bad list now.<br />
<br />
73 Keith G6NHU <br />
<br /></span> <em><span style='font-family:"Aptos",sans-serif;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:Aptos'>"I'm Enrico IU4AZC and I'm a ham radio operator with a recent interest in understanding the behaviour of the DX Cluster network.</span></em><span style='mso-fareast-font-family:"Times New Roman"'><br />
<em><span style='font-family:"Aptos",sans-serif;mso-bidi-font-family:Aptos'>To grab a few statistics, I've created a basic software that opens a TCP connection to a few nodes and stores the received spots in a database. I've noticed that in the past hours your node started rejecting my connection and I suspect it's because some bug in my code made it behave in some "abusive" way. If that's the case, I apologise and I don't ask you to remove my ip from the blacklist sooner than the usual policy - I'll wait and use other clusters in the meantime.</span></em><br />
<em><span style='font-family:"Aptos",sans-serif;mso-bidi-font-family:Aptos'>But if it's not the case (maybe your software does a GeoIP lookup and the location doesn't match? I moved to London a few years ago), may I ask you to check in the logs the reason of my connections being rejected?</span></em><br />
<em><span style='font-family:"Aptos",sans-serif;mso-bidi-font-family:Aptos'>I'm currently connecting over IPv4 from 140.228.74.170."</span></em></span></p>
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<p class="MsoNormal"><span style='mso-fareast-font-family:"Times New Roman"'>On 1 Feb 2025 at 20:37 +0000, Kin via Dxspider-support <<a href="mailto:dxspider-support@tobit.co.uk">dxspider-support@tobit.co.uk</a>>, wrote:<br style='mso-special-character:line-break' /></span></p>
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<p class="MsoNormal"><span style='mso-fareast-font-family:"Times New Roman"'>Hi,<br />
<br />
This IP 140.228.74.170 is being used to try to access different nodes on the<br />
network, using different callsigns, with different SSIDs.<br />
That pattern: IUxAZC-x<br />
Advised: set/badip 140.228.74.170<br />
<br />
Kin<br />
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<a href="https://mailman.tobit.co.uk/mailman/listinfo/dxspider-support">https://mailman.tobit.co.uk/mailman/listinfo/dxspider-support</a></span></p>
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_______________________________________________<br />
Dxspider-support mailing list<br />
Dxspider-support@tobit.co.uk<br />
https://mailman.tobit.co.uk/mailman/listinfo/dxspider-support<br /></blockquote>
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